Hey Rottwyler! Just checking in with you, learning to use this forum. Hope you are well. You are a solar energy teacher! I am so impressed. Don't understand much about that myself, but always wished I could afford a nice set of solar panels on my roof, really would help on my crazy electric bills. I've been reading up on the PIF forum and it seems like fun, you try things that other people are sharing and then put something out there that you would like to share. I might try it soon, go check it out. I'd link it to you but I don't know how to do all that yet (not computer or tech savvy). Take care, wingsprouts